Question

Define

(a) Compressibility

(b) Rigidity

(c) Fluidity.

Answer 1

(a) Compressibility. It is the property as a result of which the particles of any matter come closer on applying pressure. (Example = Air/Gases are compressible).
(b) Rigidity. It is the capacity of the particles of a matter to resist a change in shape and size on applying stress. (Example = Solids like stones are rigid).
(c) Fluidity. It is the property as a result of which particles of a matter have a tendency to flow. (Example = Water can flow and have fluidity).